Shuttle-race for sewing-machines.



Nb. 759,298. PATENTED MAY 10, 1904.

H. MUNDLOS.

SHUTTLE RAGE FOR SEWING MACHINES. APPLIOATION FILED JUNE 25, 1902.

H0 MODEL.

Patented May 10, 1904.

PATENT OFFICE.

HEINRICH MUNDLOS, OF MAGDEBURGr-NEUSTADT, GERMANY.

SHUTTLE-RACE FOR SEWING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 7 59,298, dated May 10,1904.

Application filed June 25, 1902. Serial No. 113,153. (No model.)

.To rtZZ whom it may concern:

Be it known that I, HEINRICH MUNDLos, a subject of the King of Prussia,German Emperor, and a resident of Magdeburg-Neustadt, in the Kingdom ofPrussia, (ii-erman Empire, have invented certain new and usefulImprovements in Covers for the Races of SewingMa chine Shuttles, ofwhich the following is a specification.

My invention relates to improvements in covers for the races ofsewing-machine shuttles, and more especially for the races ofsewing-machines with a shuttle oscillating in a circle. In theseshuttles it has always been a great disadvantage that if the thread wastorn the torn-ofi end of the thread was held fast between the shuttleand the race, whereby the sewing-machine was stopped and could only bestarted again after opening the cover of the race, removing the shuttle,arranging the thread, and setting the shuttle in again. Allsewing-machines with circular races possess this drawback, which is doneaway with by the construction of the cover forming the object of thepresent invention, and repreented in the accompanying drawings, in whiclFigure 1 is a section of a race the cover of which is provided with mynew arrangement. Fig. 2 is an upper view of the race. Fig. 3 is a lowerview of the cover; and Fig. 4 is a vertical section of the race, showinga special construction of the shuttle.

I attain the purpose of the invention by arranging one or severalgrooves or slots of any convenient form in the cover for the race inthat way that in case the thread is torn the to mofl end will besituated into these grooves or slots-r1. 0., will be pressed into thesame by means of the shuttle.

It will be understood that the invention may be employed for allsuitable constructions of sewing-machines, the drawings onlyrepresenting an example.

In the construction shown a ring a. is connected, by means of arms 6,with the nave c of the shuttle-race. To the ring a the circular like.

ring (0, forms the guide for the shuttle c. ()n the inside of the cover(Z an annular groove f is provided. It will be clear that this groovemay have any convenient form, the same fulfilling only the purpose offorming the space taking up the torn-ofl threads. ()n the lower side ofthe cover a cut-out 7 is provided, which serves the purpose of allowingthe tornoII threads to fall out. Instead of the annular groove slots maybe provided, which allow the thread to immediately fall out.

In the construction shown in Fig. t it is shown that the purpose of theinvention can also be attained by a special construction of the shuttle.In the construction shown the edges of the shuttle are chamfered, asshown at g, whereby it is attained that the torn-oii thread can also bepressed into the small triangular spaces at the top and bottom of theshuttle. It will be clear that by cham'fering the edges of the shuttlethe purpose of the invention can be attained alone; but advantageouslythis construction is used in combination with a special construction ofthe cover (Z.

Having thus fully described the nature of this invention, what Idesire'to secure by Letters Patent of the United States is- I. Thecombination, in a shuttle-race for sewing-machines, of a shuttle with aracecover consisting of an annular plate provided with a groove at theinside passing around the inner edge of the' plate, substantially asdescribed and ,for the purpose indicated.

2. In a shuttle-race for sewing-machines, the combination of a shuttlewith a race-cover comprising an annular plate provided with a circulargroove at its inside passing around the inner edge of the plate andfurther provided with holes connecting the groove with the outside ofthe plate, essentially as described and shown.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

HEINRICH MUN DLOS.

WVitn esses:

LEO PALMER, MAX VVEsoI-IEn.

